Home / 3,960.62-5,465.63-2,192.22

Finding the Fourth Proportional to 3,960.62, 5,465.63 and 2,192.22

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Solution

The fourth proportional to 3,960.62, 5,465.63 and 2,192.22 is: 3,025.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.62 : 5,465.63 = 2,192.22 : x
  2. Step 2: Convert to fraction form
    3,960.62/5,465.63 = 2,192.22/x
  3. Step 3: Cross multiply
    3,960.62x = 5,465.63 × 2,192.22
  4. Step 4: Simplify right side
    3,960.62x = 11,981,863.40
  5. Step 5: Solve for x
    x = 11,981,863.40/3,960.62
  6. Step 6: Final answer
    x = 3,025.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.